e2902b8cc2
Update the exporter logging on startup to include the exporter version, the path to the fail2ban socket, and whether basic-auth is enabled or not. Fix code printing error messages on invalid CLI parameters to correct line breaks and correctly print the "usage" information.
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
package f2b
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import (
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"fail2ban-prometheus-exporter/cfg"
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"fail2ban-prometheus-exporter/socket"
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"github.com/prometheus/client_golang/prometheus"
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"log"
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)
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type Collector struct {
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socketPath string
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exporterVersion string
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lastError error
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socketConnectionErrorCount int
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socketRequestErrorCount int
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}
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func NewExporter(appSettings *cfg.AppSettings, exporterVersion string) *Collector {
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log.Printf("reading metrics from fail2ban socket: %s", appSettings.Fail2BanSocketPath)
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return &Collector{
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socketPath: appSettings.Fail2BanSocketPath,
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exporterVersion: exporterVersion,
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lastError: nil,
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socketConnectionErrorCount: 0,
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socketRequestErrorCount: 0,
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}
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}
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func (c *Collector) Describe(ch chan<- *prometheus.Desc) {
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ch <- metricServerUp
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ch <- metricJailCount
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ch <- metricJailFailedCurrent
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ch <- metricJailFailedTotal
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ch <- metricJailBannedCurrent
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ch <- metricJailBannedTotal
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ch <- metricErrorCount
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}
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func (c *Collector) Collect(ch chan<- prometheus.Metric) {
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s, err := socket.ConnectToSocket(c.socketPath)
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if err != nil {
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log.Printf("error opening socket: %v", err)
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c.socketConnectionErrorCount++
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} else {
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defer s.Close()
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}
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c.collectServerUpMetric(ch, s)
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if err == nil && s != nil {
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c.collectJailMetrics(ch, s)
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c.collectVersionMetric(ch, s)
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}
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c.collectErrorCountMetric(ch)
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}
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